How to output php error log in nginx

Method for nginx to output php error log: 1. Edit the php-fpm.conf configuration file and add [error_log = log/error_log]; 2. Edit the php.ini configuration file and add [log_errors = On]; 3. Restart php-fpm.

Problem analysis:

nginx is a web server, so nginx’s access log only records the accessed pages, and there will be no php error log information.

(Recommended tutorial: nginx tutorial)

nginx sends the request for php to the php-fpm fastcgi process for processing. The default php-fpm will only output php -fpm error information, php errorlog cannot be seen in the errors log of php-fpm.

The reason is that the php-fpm configuration file php-fpm.conf defaults to turning off the error output of the worker process and redirecting them directly to /dev/null, so we use nginx’s error log and php- The error log of fpm cannot see the error log of php.

How to solve the problem that php-fpm under nginx does not record php error logs:

1. Modify the configuration in php-fpm.conf and add

catch_workers_output = yes
error_log = log/error_log

2 , modify the configuration in php.ini, if not, add

log_errors = On
error_log = "/usr/local/lnmp/php/var/log/error_log"
error_reporting=E_ALL&~E_NOTICE

3. Restart php-fpm

When PHP execution error occurs, you can see the error log in "/usr/local /lnmp/php/var/log/error_log".

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